Hey Nintex!
I've installed all required components and can get a Form and Task on my W8 laptop while connected to our work VPN (I'm out of the office). All working well and as expected.
I've gone through all of the config I can find to make the same List and Task form accessible via a MS Account (eg. myemailaddress@outlook.com) on my iPhone. I've Enabled Mobile Apps Live in Central Admin, logged in to the app with a working MS Account, created some iphone mobile forms for my flexi task and list and live enabled them and also specified the same MS Account I'm logging in with in the Live Settings in the form. I keep getting an error saying "Logged in user is not registered in mobile gateway".
I've had a look through the FAQ's and How To's but I can't find anything specific to this.
Love the product though guys, got heaps of potential.
Kevin